Canna 'Lady Hannah' is a miniature Crozy Group cultivar, with green leaves and multi-coloured flowers.
Lady Irwin requires research.
Canna 'Ladybird' is a medium-sized Crozy Group cultivar, with green leaves and yellow flowers.
Laertes requires research.
laeta Bouché is a synonym of indica var. indica.
Laetal requires research.
Lafayette is a synonym of Assaut.
Laforcarelle requires research.
lagunensis Lindl. is a synonym of indica var. indica.
Lamarck requires research.
lambertii Lindl. is a synonym of indica var. indica.
lanceolata Lodd. is a synonym of amabilis T.Koyama & Nob.Tanaka.
Canna 'Landscape Red' is a medium-sized Crozy Group cultivar, with green leaves and red flowers.
lanuginosa Roscoe is a synonym of paniculata.
Lapis Nicolas II requires research.
latifolia is a synonym of tuerckheimii.
Canna 'Lau' is a tall Foliage Group cultivar, with variegated leaves and pink flowers.
Canna 'Laura Dalebø' is a miniature Miniature Group cultivar, with green leaves and white flowers.
Canna 'Lauvert' is a medium-sized Crozy Group cultivar, with dark leaves and pink flowers.
Lavallei requires research.